Rotary valve.



J. P. KING.

ROTARY VALVE.

' A11'LIGATION rum) JULY 25, 1914. 1,130,521. Patented Mar.2,1915.

' 2 SHEETSSHEET 1.

FT] K wflncooeo I. P. KING; ROTARY VALVE APPLICATLO'N rum) JULY 211.1014

Patented Mar. 2, 1915.

2 SHEETS SHEET 2 El) sm e ANT 5* JACOB P. KING, GE EHILADELPHIA, EENNSEYLVANIA.

ROTARY VALVE;

zpeniflcetion of Letters Ealzexit.

imeemee Mar. 2, 1915 min-me filed m 25, 25:4. Serial m. 853,220.

' This invention relates. to rotary valves more particularly designed for use with motor vehicles iut'capable of use in'other relations, and one of the principal objects of the invention is to provide a rotary inlet and exhaust valve of simple construction which will bocimplo in construction, and reliable and eillcient in use, i

Another objectof the invention is to pro vide a rotary valve or" tapering form, which will lie hal l to its seat by means of a spring, the contour of the valve and seat being such that the wear will be taken up by means of the spring for holding the valve to its seat These and other objects may be attained by means of the construction illustrated in the accompanying drawings, in which,

Figure l is a side elevation of an engine cylinder and showing a valve in section connected therewith, said valve being made in accordance with this invention, Fig. 2 is a sectional viewtnken on the line 1 Fig. 3 is a detail sectional yl, and 4 :i seicionni view till-201! on the line lei; poi" r curerl to the provide-3 with tapering inner walls and an exhaust port 4.

A ml 5 is soured in the casing. and the fuel inlet pipe 6 is formed integral with a threaded cap 7 fitted in the upper owl if the valve resin 3 by means of the thremlcil and adjustable ang-e 8.

The flange is provided with a fuel inlet port 1 and an exhaust port l0 lllli inlet port leading? no the upper edge of the valve down t =2? beyond the inlet opening" in the The exhaust-port 10 does .1 not. ext n l .quite tothe uypor edge of the valve, but opens out at the bottom of the valve as soov-"n as ll in Fig. The upper edge of ihe valve is provided with a curved rim or flange 12 which fits the curved portion of the walls of the valve casing 3. A valve stem ext-ends iihrough the valve and is connecied near the upper end of the valve centrally of the flange- 12 by means of a pin l4. The stem l3 extends through the valve casing and intersects the exhaust "port 4. A

spiral spring-l5 surrounds the valve. stem and one end of said spring bears against a collar 16 while the opposite end, bears ugainsh a, boss 17 on the lower end of the valve casing. The spring 15'by exyansion serves to hold the vclve 5 seated.

Connected to the lower end of the valve stem i3 is a worm'gear 18, which is provided with a. projecting sleeve having a binding screw 19 extending through the some and into the valve stem. For supportv ing the valve stem, 3 projecting finger 20 engages the outer end of the spiral gear 18, said linger being formed on a suitable bracket connected to the crank casin J 21. A crank shaft journalecl in the own casing is PIOilClQfTWltll espiral 23 which engages and rotates the valve stem 13 through the worm 18. Connected to the lower end of the valve stem 13 is a sleeve 24 provided with a collar formed on a. bracket 26 supported upon the crank casing 21 to form a guide, for the valvestem. The sleeve 24 is provided; with oppositely disposed opened slots 27, linden, pin 28 extending through the lower end of the valve stem 13 is movable in the slots :27 to compensate for the wear an? the valve in the casing and to permit the spring to llOlil the valve to its'seatv The lower eilue oi the valve is provided 7 V in the valve casing.

From the foregoing it will be obvious that (Wing; to the shape of the valve and the operation of the spring 15 and the pin 28 the valve will always he held to its and compo: ate for wear. of this construction is that the valve is llways eccesil'ile f0 cleaning or repairs, and this valve will operate smoothly and almost noiselessly.

Various changes may he made in the (letnils of construction withoutllepzirting from the spirit and scope of the invention es (lol'll'lfill in the claims.

l /hail claimed is:-

l. A roim'y valve coliiprising a tapering casing; a valve heaQi mounted in the casing and provided with a llange or head at its downward, and an exhaust port extending inward at a point below the upper edge of the valve head and opening out into 'an egghaust ort in the cas ng, means for holding the va ve seated, and me'ans or; rotating the valve stem and valve i 2. A ta ring valve leasing; 'a combined cap and in ct pipe in: closing the up r end of said casing, a. valve head mounte in the casing, a flange or head upon-the upper end of the valve headj tor-engaging a correspending surface on the inner well of the .casing, said valve head having a bevel u n its lower end to fit a eorresponding bee in the casm a valve stem connected to said head, sai

valve head having an inlet and nnoutlet port, and means for totaling-said valve stem. 

